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matei jordache
2024-02-28 15:33:58 -05:00
parent 0efe375e0a
commit 5869772066
4 changed files with 46 additions and 0 deletions
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README.md
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[![Hardware Design](https://github.com/VIPQualityPost/lemon-pepper-stepper/actions/workflows/design.yml/badge.svg?branch=main)](https://github.com/VIPQualityPost/lemon-pepper-stepper/actions/workflows/design.yml)
[![Assembly Documentation](https://github.com/VIPQualityPost/lemon-pepper-stepper/actions/workflows/documentation.yml/badge.svg)](https://github.com/VIPQualityPost/lemon-pepper-stepper/actions/workflows/documentation.yml)
# Lemon Pepper Stepper Driver # Lemon Pepper Stepper Driver
Small, all in one hybrid stepper + BLDC driver, designed to mount to the back of NEMA 14/17 size stepper motors. The board supports up to 48V @ 1.5A with a choice of either step-dir, CAN bus, I2C, UART or USB input. Additionally, there are 5 GPIO broken out that can be used for a second encoder (AB hardware encoder or I2C), endstops or other general purposes. Current sensing is also included on-board. Small, all in one hybrid stepper + BLDC driver, designed to mount to the back of NEMA 14/17 size stepper motors. The board supports up to 48V @ 1.5A with a choice of either step-dir, CAN bus, I2C, UART or USB input. Additionally, there are 5 GPIO broken out that can be used for a second encoder (AB hardware encoder or I2C), endstops or other general purposes. Current sensing is also included on-board.
The boards can easily be assembled by JLC and the design has been cost-optimized, coming in at about $20 per board fully assembled (minus connectors, which need to be modified to sit flat on motor back). The boards can easily be assembled by JLC and the design has been cost-optimized, coming in at about $20 per board fully assembled (minus connectors, which need to be modified to sit flat on motor back).

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scripts/dependencies.sh Executable file
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#!/bin/bash
set -e
set -v
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
sudo add-apt-repository --yes ppa:kicad/kicad-8.0-releases
sudo apt-get update -qq
sudo DEBIAN_FRONTEND=noninteractive apt install --install-recommends kicad kicad-packages3d- kicad-demos-
sudo DEBIAN_FRONTEND=noninteractive apt install python3 pip
sudo python3 -m pip install pandas

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scripts/jlc_bom_formatter.py Normal file
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import pandas as pd
import os, sys, csv
def footprintFix(fpName):
propertiesList = fpName.split('_')
if len(propertiesList) == 4:
if any(rcl in propertiesList[0] for rcl in ["Resistor", "Capacitor", "Inductor", "Diode"]):
# For things like R/C/L, return something like C0402
return propertiesList[1][-1] + propertiesList[2]
# Strip out library name from FP.
return fpName.split(":")[-1]
bom_file = pd.read_csv(sys.argv[1])
bom_file.columns = ['Designator', 'Value', 'Footprint', 'JLCPCB']
bom_file['Footprint'] = bom_file['Footprint'].apply(lambda x: footprintFix(x))
bom_file.to_csv(sys.argv[2], index=False)

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scripts/jlc_cpl_formatter.py Normal file
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import pandas as pd
import os, sys, csv
cpl_file = pd.read_csv(sys.argv[1])
cpl_file.columns = ['Designator', 'Val', 'Package', 'Mid X', 'Mid Y', 'Rotation', 'Layer']
cpl_file = cpl_file.reindex(columns=['Designator', 'Mid X', 'Mid Y', 'Layer', 'Rotation'])
cpl_file.drop([0,1,2,3,4,5])
cpl_file['Layer'] = "T"
cpl_file.to_csv(sys.argv[2], index=False)